Well, I put the 52/53 cams in today (replacing the 56/57 in there - someone posted about the 54/55, can someone throw the numbers for the 56/57 up? Thanks!)

My car idles smoother, runs quieter and smoother, and it seems to respond a lot more quickly to the throttle. I drove it like a madman going up the Morgan highway - with the 56/57 cams, my headers were ALWAYS red after this. When I got there, the headers not only weren't red, the engine itself felt a LOT cooler than it used to!

The cams I took off were in absolute beautiful condition as well. (NOT ONE of the lobes has any signs of serious wear!) - I think that the reason it got so hot is that my timing chain stretch (causing later cam timing) combined with later cams produced insanely high exhaust gas temps!

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Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k